西安电子科技大学学报（自然科学版）2025，Vol.52Issue(2)：13-24,12.DOI:10.19665/j.issn1001-2400.20241205
全双工中继和速率分割协同的安全传输方案
Secure transmission scheme for cooperative full-duplex relaying and rate splitting
摘要
Abstract
In order to solve the inherent defects of a traditional network framework such as limited coverage and low system capacity,by considering the security problems of cooperative communication with untrusted user relay and rate segmentation,the weighted sum of the average confidentiality rate of remote users and the maximum reachable rate of public information is constructed.This paper combines Rate-Splitting Multiple Access(RSMA)technology with cooperative relaying technology for the first time,and considers the risk of public information leakage caused by the characteristics of common message broadcasting.Due to the coupling of variables and nonlinear constraints in this problem,it is non-convex and can not be solved directly.Therefore,by considering the constraints of the power budget of the base station and the relay equipment,the precoding matrix,public information segmentation and deal-to-device transmission power are jointly optimized.The Successive Convex Approximation(SCA)method is adopted to introduce slack variables and linearize the non-convex constraints.The non-convex problem is converted into a convex problem that is easy to solve,and an iterative optimization algorithm for full-duplex cooperative rate segmentation is designed so as to avoid the waste of time and resources.Simulation results prove the superiority of the proposed scheme.Compared with the existing half-duplex rate split multiple access scheme,it has a better convergence and improves the real-time hardware configuration.At the same time,compared with the non-cooperative rate split multiple access scheme,it can achieve a higher secure transmission rate and provide practical security for remote users.关键词
协作通信/优化算法/安全速率/预编码/速率分割多址Key words
cooperative communication/optimization algorithms/secure rate/precoding matrix/rate splitting multiple access分类
电子信息工程引用本文复制引用
魏明生,端思轶,李世党,高全学,李春国..全双工中继和速率分割协同的安全传输方案[J].西安电子科技大学学报（自然科学版）,2025,52(2):13-24,12.基金项目
国家自然科学基金(62171119) （62171119）
江苏省研究生科研与实践创新计划项目(SJCX23_1378) （SJCX23_1378）
国家重点研发计划(2017YFF0205500) （2017YFF0205500）
徐州市重点研发项目(KC20027,KC18079,KC22083,KC23134) （KC20027,KC18079,KC22083,KC23134）
教育部春晖计划国际合作项目(202201406,HZKY20220171) （202201406,HZKY20220171）
江苏省高等学校基础科学(自然科学)研究重大项目(24KJA510004) （自然科学）
